Seiko Cal. 4430 - 422

This Hand-Winding model from 1965 features a 34mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-9d5c6152f501]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1965

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